Say what you will about the SotO storyline overall, but I genuinely think this scene was really cool and properly showcased how Eparch isn’t only a danger to Tyria, but to his fellow Kryptis.
I don't think he was a danger at all, he just saw an opportunity in Soo-Won's death (as the Shadowstone in Amnytas was damaged) and took it. I think he was deluded or something has manipulated him into devouring "everything". He even said during the Zakiros event that "he saw everything", and I think it meant that the Eye of Janthir has showed him "something" that made him delusional, made him a Kryptis cannibal. No other Kryptis has been consuming fellow Demons, not even Cerus or Deimos - they fed on emotions. Eparch's desire to consume, I think, was definitely abnormal and made no logical sense. Eye of Janthir is an artifact that manipulates emotions, acts and we actually witnessed its manipulation back in Season 3, when it showed the vision of Balthazar killing Kralkatorrik - yet it never happened - it shows the general truth, but hides the smaller elements from people it manipulates. Eparch was a maniacal being, but he genuinely cared for Kryptis, but yet he did something against his nature - consuming his people, taking their dreams away, reducing them to empty emotions - and I don't think he did it entirely willingly.
